Dish-washing machine



W. U. BOEDEKER.

DISH WASHING MACHINE.

APPLICATION FILED SEPT. 21, 1920.

Patented Oct. 4, 1921.

UNITED STATES PATENT, OFFICE.

WALTER U. BOEDEKER, OF CHICAGO, ILLINOIS, ASSIGNOR, BY MESNE ASSIGNMENTS, TO B. B. CORPORATION, OF CHICAGO, ILLINOIS, A. CORPORATION OF ILLINOIS.

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Specification of Letters Patent.

Patented Oct. 4, 1921.

Application filed September 27, 1920. Serial No. 412,960.

To all whom it may concern: I

Be it known that I, WALTER U. Bononxnn, a citizen of the United States of America, and a resident of Chicago, county of Cook, and State of Illinois, have invented certain new and useful Improvements in Dish- Washing Machines, of which the following is a specification.

My invention relates to dish washing machines, and has for its object improvements in such devices.

In the accompanying drawings- Figure 1 is a sectional elevation of the lower part of a dish Washing machine embodying the improvements of my invention;

Fig. 2 is a plan, the casing being in section on line 22 of Fig. 1; and

Fig. 3 is a detail, being an end elevation of the jets and driving connections.

In aid drawings, 10 is the casing or tank in which the washing is done. It has an inclined bottom 11 'for draining away the water through an opening 12. It is also provided with bars 13 for supporting a basket, not shown.

Located at the center of the bottom 11 is a castin or fitting in the form of an elbow 14 to w ich is connected a water pipe 15 having a bracket 16 on its outer end. The bracket 16 has connections for a soap holder 17 and a water supply pipe 18.

The elbow 14 has on it a flange 19 to which is bolted a gear 20. The upper part of the elbow termlnates in a central pin 21 on which is pivoted a hollow arm or pipe 22 having on its outer end another elbow 23 like that part of the elbow 14 just above the gear 20. These parts of these elbows have openings which permit water to flow from the pipe 15 through the elbow 14 to the pipe 22 and thence through the elbow 23 to a swivel head 24 having short pipes .25 connectedto opposite sides. [The head previously described and is discharged from the nozzles 30, the reaction of such discharge Wlll cause the head 24 to revolve on the elbow 23. As there are equal parts on each side of the head 24, these parts are balanced and will turn easily. As the nozzles are on Opposite sides, that balance will not be disturbed by differences of reaction due to var1ations of water pressure.

The lower part of the head 24 fits closely but not tightly on the elbow 23. In the same way the part of the pipe 22 which surrounds the elbow 14 just below the lateral openings therein, fits closely but not tightly on the elbow 14. In machines of large size, a caster 31 secured to the under side of the pipe 22 and traveling on the upper face of the gear 20 supports the weight of pipe 22 and the revolving head thereon so that there will be no bind between the socketed end of pipi e 22 and the elbow 14.

he parts 24 to 30 may be considered as a sprinkler head which revolves on the axis 26 by the reaction of the water discharged through nozzles 30. The pinion 28 being secured to the head turns therewith, and as this pinion is in mesh' with the stationary gear 20, the revolving sprinkler head has a uniform planetary movement about the axis of the casing 10.

What I claim is:

1. In a dish washing machine, a casing, a pipe terminal having its axis at or near the center of the casing, a stationary gear, a pipe pivoted upon the terminal and arranged to receive Water through openings in the terminal, a revolving sprinkler head mounted upon the outer end of the pipe, and a pinion secured to said head and engaging said gear, said parts being so constructed that the sprinkler head revolves in a fixed plane and the water therefrom is projected uniformly upward at a slight incline from said lane.

2. n a dish washing machine, .a casing, a pipe terminal located at the center of the casing, a stationary gear surrounding said terminal, a hollow arm pivoted upon the terminal, said arm being arranged to receive Water through an opening in said terminal, a sprinkler head mounted upon the outer end of said arm and revolvlng uniformly in a fixed plane, and a pinion secured to said member secured to said head, said part b head and engaging said gear. ing so constructed that the sprinkler head 3. In a dish washing machine, the combirevolves in a fixed plane and the water 10 nation with a revolving sprinkler head, and therefrom is projected uniformly upward at 5 a pivoted arm through which water is supa slight incline from said plane.

plied to said head, of planetary gearing having one member stationary and the other WALTER U. BOEDEKER. 

